FC-301P4K0T4134L2917 Danfoss
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The Danfoss FC-301P4K0T4134L2917 is a three phase drive from the VLT FC 301 Automation Drives series. It delivers 4.0 kW of rated shaft power and 5.0 horsepower with an apparent power of 6.9 kVA at 400 V. Its efficiency at rated current is 0.97, and it supports mains voltages from 380 to 480 VAC.
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Product Description:
The FC-301P4K0T4134L2917 is a variable frequency drive produced by Danfoss as part of the VLT FC 301 Automation Drives series. The device converts fixed-frequency, three-phase mains power into a modulated output that allows controllers to match induction motor speed to process demand in conveyors, pumps, and general machinery. By adjusting stator frequency and voltage, it provides closed-loop torque regulation while integrating the electrical safeguards used by the 301 platform. The drive can support variable-speed applications where controlled acceleration, deceleration, and steady operation are required.
On a 380–480 VAC three-phase supply, the drive draws 9.0 A at 380–440 V and has an apparent power rating of 6.9 kVA. It can operate motors with a rated shaft output of 4.0 kW, equivalent to 5.0 hp. At 380–440 V, the inverter can deliver an output current of 10 A, while operation from 441–500 V is limited to 8.2 A to protect the power electronics from excessive thermal loading. Energy conversion efficiency reaches 0.97 at rated current, and harmonic compensation maintains a true power factor of at least 0.9, which helps limit the required capacity of upstream fuses and contactors. The DC-link braking threshold is 728 V DC, permitting controlled dynamic deceleration when energy returns from the motor.
Protective thresholds in the VLT control board issue a high-voltage warning at 810 V DC and trigger an overvoltage alarm at 820 V DC, helping prevent damage to the insulated-gate power modules. During continuous operation at full load, the drive dissipates 124 W, so the enclosure must provide enough ventilation to remove this heat. The installation supports shielded motor leads up to 50 m and unshielded motor leads up to 75 m before reflected-wave voltages may exceed motor insulation limits. The permissible phase imbalance is limited to 3.0 percent, helping the input stage operate reliably when the supply phases are not perfectly balanced. The control logic permits no more than two power-ups per minute to protect the precharge circuit from repeated inrush current.
